Fix compilation with --disable-decoders.
[libav.git] / libavcodec / utils.c
CommitLineData
de6d9b64
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1/*
2 * utils for libavcodec
ff4ec49e 3 * Copyright (c) 2001 Fabrice Bellard.
9b879566 4 * Copyright (c) 2003 Michel Bardiaux for the av_log API
8f2ab833 5 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
de6d9b64 6 *
ff4ec49e
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7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
de6d9b64 11 *
ff4ec49e 12 * This library is distributed in the hope that it will be useful,
de6d9b64 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
de6d9b64 16 *
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17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
de6d9b64 20 */
115329f1 21
983e3246
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22/**
23 * @file utils.c
24 * utils.
25 */
115329f1 26
de6d9b64 27#include "avcodec.h"
3123dd79 28#include "dsputil.h"
1c2a8c7f 29#include "mpegvideo.h"
4c263142 30#include "integer.h"
6fd46414 31#include "opt.h"
43a80cce 32#include "crc.h"
9b879566 33#include <stdarg.h>
4c263142 34#include <limits.h>
860a40c8 35#include <float.h>
1005f542
CH
36#ifdef CONFIG_WIN32
37#include <fcntl.h>
38#endif
de6d9b64 39
44608ac7
RG
40const uint8_t ff_reverse[256]={
410x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0,
420x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8,
430x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4,
440x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC,
450x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2,
460x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA,
470x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6,
480x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE,
490x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1,
500x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9,
510x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5,
520x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD,
530x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3,
540x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB,
550x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7,
560x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF,
57};
58
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59static int volatile entangled_thread_counter=0;
60
b100eab8 61void avcodec_default_free_buffers(AVCodecContext *s);
eea8c08f 62
18f77016 63void *av_mallocz(unsigned int size)
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64{
65 void *ptr;
115329f1 66
3123dd79
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67 ptr = av_malloc(size);
68 if (!ptr)
69 return NULL;
70 memset(ptr, 0, size);
71 return ptr;
72}
73
8e1e6f31
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74char *av_strdup(const char *s)
75{
76 char *ptr;
77 int len;
78 len = strlen(s) + 1;
79 ptr = av_malloc(len);
80 if (!ptr)
81 return NULL;
82 memcpy(ptr, s, len);
83 return ptr;
84}
85
86/**
87 * realloc which does nothing if the block is large enough
88 */
5c91a675 89void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size)
8e1e6f31 90{
115329f1 91 if(min_size < *size)
8e1e6f31 92 return ptr;
115329f1 93
0ecca7a4 94 *size= FFMAX(17*min_size/16 + 32, min_size);
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95
96 return av_realloc(ptr, *size);
97}
98
99
855ea723 100static unsigned int last_static = 0;
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101static unsigned int allocated_static = 0;
102static void** array_static = NULL;
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103
104/**
105 * allocation of static arrays - do not use for normal allocation.
106 */
107void *av_mallocz_static(unsigned int size)
855ea723 108{
855ea723 109 void *ptr = av_mallocz(size);
855ea723 110
115329f1 111 if(ptr){
4e39ab4c 112 array_static =av_fast_realloc(array_static, &allocated_static, sizeof(void*)*(last_static+1));
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113 if(!array_static)
114 return NULL;
8d1f2ba5 115 array_static[last_static++] = ptr;
855ea723 116 }
8d1f2ba5 117
855ea723
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118 return ptr;
119}
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120
121/**
073c2593
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122 * same as above, but does realloc
123 */
124
125void *av_realloc_static(void *ptr, unsigned int size)
126{
127 int i;
128 if(!ptr)
129 return av_mallocz_static(size);
130 /* Look for the old ptr */
131 for(i = 0; i < last_static; i++) {
132 if(array_static[i] == ptr) {
133 array_static[i] = av_realloc(array_static[i], size);
134 return array_static[i];
135 }
136 }
137 return NULL;
138
139}
140
141/**
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142 * free all static arrays and reset pointers to 0.
143 */
4cfbf61b 144void av_free_static(void)
855ea723 145{
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146 while(last_static){
147 av_freep(&array_static[--last_static]);
855ea723 148 }
8d1f2ba5 149 av_freep(&array_static);
855ea723
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150}
151
81c5f887 152/**
32fbf33e
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153 * Call av_free_static automatically before it's too late
154 */
155
ceaf1909 156static void do_free(void) __attribute__ ((destructor));
32fbf33e 157
ceaf1909 158static void do_free(void)
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159{
160 av_free_static();
161}
162
163/**
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164 * Frees memory and sets the pointer to NULL.
165 * @param arg pointer to the pointer which should be freed
166 */
167void av_freep(void *arg)
4d7a0a05 168{
81c5f887 169 void **ptr= (void**)arg;
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170 av_free(*ptr);
171 *ptr = NULL;
172}
173
de6d9b64 174/* encoder management */
8b69867f 175AVCodec *first_avcodec = NULL;
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176
177void register_avcodec(AVCodec *format)
178{
179 AVCodec **p;
180 p = &first_avcodec;
181 while (*p != NULL) p = &(*p)->next;
182 *p = format;
183 format->next = NULL;
184}
185
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186void avcodec_set_dimensions(AVCodecContext *s, int width, int height){
187 s->coded_width = width;
188 s->coded_height= height;
189 s->width = -((-width )>>s->lowres);
190 s->height= -((-height)>>s->lowres);
191}
192
d90cf87b 193typedef struct InternalBuffer{
1e491e29 194 int last_pic_num;
d90cf87b 195 uint8_t *base[4];
1e491e29 196 uint8_t *data[4];
237e4938 197 int linesize[4];
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198}InternalBuffer;
199
200#define INTERNAL_BUFFER_SIZE 32
1e491e29 201
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202#define ALIGN(x, a) (((x)+(a)-1)&~((a)-1))
203
204void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height){
115329f1
DB
205 int w_align= 1;
206 int h_align= 1;
207
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208 switch(s->pix_fmt){
209 case PIX_FMT_YUV420P:
210 case PIX_FMT_YUV422:
ebb177dd 211 case PIX_FMT_UYVY422:
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212 case PIX_FMT_YUV422P:
213 case PIX_FMT_YUV444P:
214 case PIX_FMT_GRAY8:
215 case PIX_FMT_YUVJ420P:
216 case PIX_FMT_YUVJ422P:
217 case PIX_FMT_YUVJ444P:
218 w_align= 16; //FIXME check for non mpeg style codecs and use less alignment
219 h_align= 16;
220 break;
221 case PIX_FMT_YUV411P:
f02be79d 222 case PIX_FMT_UYVY411:
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223 w_align=32;
224 h_align=8;
225 break;
226 case PIX_FMT_YUV410P:
227 if(s->codec_id == CODEC_ID_SVQ1){
228 w_align=64;
229 h_align=64;
230 }
d99fbbf4
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231 case PIX_FMT_RGB555:
232 if(s->codec_id == CODEC_ID_RPZA){
233 w_align=4;
234 h_align=4;
235 }
236 case PIX_FMT_PAL8:
237 if(s->codec_id == CODEC_ID_SMC){
238 w_align=4;
239 h_align=4;
240 }
f0bbfc4a 241 break;
c31b8121
RT
242 case PIX_FMT_BGR24:
243 if((s->codec_id == CODEC_ID_MSZH) || (s->codec_id == CODEC_ID_ZLIB)){
244 w_align=4;
245 h_align=4;
246 }
247 break;
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MN
248 default:
249 w_align= 1;
250 h_align= 1;
251 break;
252 }
253
254 *width = ALIGN(*width , w_align);
255 *height= ALIGN(*height, h_align);
256}
257
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258int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h){
259 if((int)w>0 && (int)h>0 && (w+128)*(uint64_t)(h+128) < INT_MAX/4)
260 return 0;
115329f1 261
0ecca7a4
MN
262 av_log(av_log_ctx, AV_LOG_ERROR, "picture size invalid (%ux%u)\n", w, h);
263 return -1;
264}
265
492cd3a9 266int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 267 int i;
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268 int w= s->width;
269 int h= s->height;
d90cf87b 270 InternalBuffer *buf;
237e4938 271 int *picture_number;
0ecca7a4 272
4e00e76b 273 assert(pic->data[0]==NULL);
d90cf87b 274 assert(INTERNAL_BUFFER_SIZE > s->internal_buffer_count);
1e491e29 275
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276 if(avcodec_check_dimensions(s,w,h))
277 return -1;
278
d90cf87b
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279 if(s->internal_buffer==NULL){
280 s->internal_buffer= av_mallocz(INTERNAL_BUFFER_SIZE*sizeof(InternalBuffer));
281 }
282#if 0
283 s->internal_buffer= av_fast_realloc(
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DB
284 s->internal_buffer,
285 &s->internal_buffer_size,
d90cf87b
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286 sizeof(InternalBuffer)*FFMAX(99, s->internal_buffer_count+1)/*FIXME*/
287 );
288#endif
115329f1 289
d90cf87b 290 buf= &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
237e4938
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291 picture_number= &(((InternalBuffer*)s->internal_buffer)[INTERNAL_BUFFER_SIZE-1]).last_pic_num; //FIXME ugly hack
292 (*picture_number)++;
115329f1 293
d90cf87b 294 if(buf->base[0]){
237e4938
MN
295 pic->age= *picture_number - buf->last_pic_num;
296 buf->last_pic_num= *picture_number;
1e491e29 297 }else{
f0bbfc4a 298 int h_chroma_shift, v_chroma_shift;
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299 int pixel_size, size[3];
300 AVPicture picture;
301
1e491e29 302 avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
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303
304 avcodec_align_dimensions(s, &w, &h);
115329f1 305
1e491e29
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306 if(!(s->flags&CODEC_FLAG_EMU_EDGE)){
307 w+= EDGE_WIDTH*2;
308 h+= EDGE_WIDTH*2;
309 }
c7622f9a
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310 avpicture_fill(&picture, NULL, s->pix_fmt, w, h);
311 pixel_size= picture.linesize[0]*8 / w;
312//av_log(NULL, AV_LOG_ERROR, "%d %d %d %d\n", (int)picture.data[1], w, h, s->pix_fmt);
313 assert(pixel_size>=1);
314 //FIXME next ensures that linesize= 2^x uvlinesize, thats needed because some MC code assumes it
315 if(pixel_size == 3*8)
316 w= ALIGN(w, STRIDE_ALIGN<<h_chroma_shift);
317 else
318 w= ALIGN(pixel_size*w, STRIDE_ALIGN<<(h_chroma_shift+3)) / pixel_size;
319 size[1] = avpicture_fill(&picture, NULL, s->pix_fmt, w, h);
320 size[0] = picture.linesize[0] * h;
321 size[1] -= size[0];
322 if(picture.data[2])
323 size[1]= size[2]= size[1]/2;
324 else
325 size[2]= 0;
326
d90cf87b 327 buf->last_pic_num= -256*256*256*64;
c7622f9a
MN
328 memset(buf->base, 0, sizeof(buf->base));
329 memset(buf->data, 0, sizeof(buf->data));
1e491e29 330
c7622f9a 331 for(i=0; i<3 && size[i]; i++){
2c19981a
MN
332 const int h_shift= i==0 ? 0 : h_chroma_shift;
333 const int v_shift= i==0 ? 0 : v_chroma_shift;
1e491e29 334
c7622f9a 335 buf->linesize[i]= picture.linesize[i];
1e491e29 336
c7622f9a 337 buf->base[i]= av_malloc(size[i]+16); //FIXME 16
d90cf87b 338 if(buf->base[i]==NULL) return -1;
c7622f9a
MN
339 memset(buf->base[i], 128, size[i]);
340
341 // no edge if EDEG EMU or not planar YUV, we check for PAL8 redundantly to protect against a exploitable bug regression ...
115329f1 342 if((s->flags&CODEC_FLAG_EMU_EDGE) || (s->pix_fmt == PIX_FMT_PAL8) || !size[2])
d90cf87b 343 buf->data[i] = buf->base[i];
1e491e29 344 else
3237f731 345 buf->data[i] = buf->base[i] + ALIGN((buf->linesize[i]*EDGE_WIDTH>>v_shift) + (EDGE_WIDTH>>h_shift), STRIDE_ALIGN);
1e491e29
MN
346 }
347 pic->age= 256*256*256*64;
348 }
237e4938 349 pic->type= FF_BUFFER_TYPE_INTERNAL;
1e491e29 350
d90cf87b
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351 for(i=0; i<4; i++){
352 pic->base[i]= buf->base[i];
353 pic->data[i]= buf->data[i];
237e4938 354 pic->linesize[i]= buf->linesize[i];
d90cf87b
MN
355 }
356 s->internal_buffer_count++;
357
1e491e29
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358 return 0;
359}
360
492cd3a9 361void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic){
1e491e29 362 int i;
d90cf87b
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363 InternalBuffer *buf, *last, temp;
364
4e00e76b 365 assert(pic->type==FF_BUFFER_TYPE_INTERNAL);
59c673d5 366 assert(s->internal_buffer_count);
d90cf87b 367
b1609412 368 buf = NULL; /* avoids warning */
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MN
369 for(i=0; i<s->internal_buffer_count; i++){ //just 3-5 checks so is not worth to optimize
370 buf= &((InternalBuffer*)s->internal_buffer)[i];
371 if(buf->data[0] == pic->data[0])
372 break;
373 }
374 assert(i < s->internal_buffer_count);
375 s->internal_buffer_count--;
376 last = &((InternalBuffer*)s->internal_buffer)[s->internal_buffer_count];
377
378 temp= *buf;
379 *buf= *last;
380 *last= temp;
381
382 for(i=0; i<3; i++){
1e491e29 383 pic->data[i]=NULL;
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384// pic->base[i]=NULL;
385 }
1e491e29
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386//printf("R%X\n", pic->opaque);
387}
388
e1c2a5a0
RT
389int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic){
390 AVFrame temp_pic;
391 int i;
392
393 /* If no picture return a new buffer */
394 if(pic->data[0] == NULL) {
395 /* We will copy from buffer, so must be readable */
396 pic->buffer_hints |= FF_BUFFER_HINTS_READABLE;
397 return s->get_buffer(s, pic);
398 }
399
400 /* If internal buffer type return the same buffer */
401 if(pic->type == FF_BUFFER_TYPE_INTERNAL)
402 return 0;
403
404 /*
405 * Not internal type and reget_buffer not overridden, emulate cr buffer
406 */
407 temp_pic = *pic;
408 for(i = 0; i < 4; i++)
409 pic->data[i] = pic->base[i] = NULL;
410 pic->opaque = NULL;
411 /* Allocate new frame */
412 if (s->get_buffer(s, pic))
413 return -1;
414 /* Copy image data from old buffer to new buffer */
415 img_copy((AVPicture*)pic, (AVPicture*)&temp_pic, s->pix_fmt, s->width,
416 s->height);
417 s->release_buffer(s, &temp_pic); // Release old frame
418 return 0;
419}
420
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421int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count){
422 int i;
423
424 for(i=0; i<count; i++){
425 int r= func(c, arg[i]);
426 if(ret) ret[i]= r;
427 }
428 return 0;
429}
430
494c56d3 431enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt){
a33c7159
MN
432 return fmt[0];
433}
434
43465395
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435static const char* context_to_name(void* ptr) {
436 AVCodecContext *avc= ptr;
437
438 if(avc && avc->codec && avc->codec->name)
115329f1 439 return avc->codec->name;
43465395
MN
440 else
441 return "NULL";
442}
443
860a40c8
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444#define OFFSET(x) (int)&((AVCodecContext*)0)->x
445#define DEFAULT 0 //should be NAN but it doesnt work as its not a constant in glibc as required by ANSI/ISO C
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MN
446//these names are too long to be readable
447#define V AV_OPT_FLAG_VIDEO_PARAM
448#define A AV_OPT_FLAG_AUDIO_PARAM
449#define S AV_OPT_FLAG_SUBTITLE_PARAM
115329f1 450#define E AV_OPT_FLAG_ENCODING_PARAM
8bbf6db9 451#define D AV_OPT_FLAG_DECODING_PARAM
860a40c8 452
62a05b5b 453static const AVOption options[]={
8bbf6db9
MN
454{"bit_rate", NULL, OFFSET(bit_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
455{"bit_rate_tolerance", NULL, OFFSET(bit_rate_tolerance), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
637b5326 456{"flags", NULL, OFFSET(flags), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|A|E|D, "flags"},
fac862c6
MN
457{"mv4", "use four motion vector by macroblock (mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_4MV, INT_MIN, INT_MAX, V|E, "flags"},
458{"obmc", "use overlapped block motion compensation (h263+)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_OBMC, INT_MIN, INT_MAX, V|E, "flags"},
459{"qpel", "use 1/4 pel motion compensation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QPEL, INT_MIN, INT_MAX, V|E, "flags"},
460{"loop", "use loop filter", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOOP_FILTER, INT_MIN, INT_MAX, V|E, "flags"},
461{"qscale", "use fixed qscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QSCALE, INT_MIN, INT_MAX, 0, "flags"},
462{"gmc", "use gmc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GMC, INT_MIN, INT_MAX, V|E, "flags"},
463{"mv0", "always try a mb with mv=<0,0>", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_MV0, INT_MIN, INT_MAX, V|E, "flags"},
464{"part", "use data partitioning", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PART, INT_MIN, INT_MAX, V|E, "flags"},
465{"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INPUT_PRESERVED, INT_MIN, INT_MAX, 0, "flags"},
466{"pass1", "use internal 2pass ratecontrol in first pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS1, INT_MIN, INT_MAX, 0, "flags"},
467{"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PASS2, INT_MIN, INT_MAX, 0, "flags"},
468{"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EXTERN_HUFF, INT_MIN, INT_MAX, 0, "flags"},
469{"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GRAY, INT_MIN, INT_MAX, V|E|D, "flags"},
470{"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_EMU_EDGE, INT_MIN, INT_MAX, 0, "flags"},
471{"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_PSNR, INT_MIN, INT_MAX, V|E, "flags"},
472{"truncated", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRUNCATED, INT_MIN, INT_MAX, 0, "flags"},
473{"naq", "normalize adaptive quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_NORMALIZE_AQP, INT_MIN, INT_MAX, V|E, "flags"},
474{"ildct", "use interlaced dct", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_DCT, INT_MIN, INT_MAX, V|E, "flags"},
475{"low_delay", "force low delay", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_LOW_DELAY, INT_MIN, INT_MAX, V|D, "flags"},
476{"alt", "enable alternate scantable (mpeg2/mpeg4)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_ALT_SCAN, INT_MIN, INT_MAX, V|E, "flags"},
477{"trell", "use trellis quantization", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_TRELLIS_QUANT, INT_MIN, INT_MAX, V|E, "flags"},
478{"global_header", "place global headers in extradata instead of every keyframe", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_GLOBAL_HEADER, INT_MIN, INT_MAX, 0, "flags"},
479{"bitexact", "use only bitexact stuff (except (i)dct)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_BITEXACT, INT_MIN, INT_MAX, A|V|S|D|E, "flags"},
480{"aic", "h263 advanced intra coding / mpeg4 ac prediction", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_AC_PRED, INT_MIN, INT_MAX, V|E, "flags"},
481{"umv", "use unlimited motion vectors", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_UMV, INT_MIN, INT_MAX, V|E, "flags"},
482{"cbp", "use rate distortion optimization for cbp", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CBP_RD, INT_MIN, INT_MAX, V|E, "flags"},
8f196b14 483{"qprd", "use rate distortion optimization for qp selection", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_QP_RD, INT_MIN, INT_MAX, V|E, "flags"},
fac862c6
MN
484{"aiv", "h263 alternative inter vlc", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_AIV, INT_MIN, INT_MAX, V|E, "flags"},
485{"slice", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG_H263P_SLICE_STRUCT, INT_MIN, INT_MAX, V|E, "flags"},
486{"ilme", "interlaced motion estimation", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_INTERLACED_ME, INT_MIN, INT_MAX, V|E, "flags"},
487{"scan_offset", "will reserve space for svcd scan offset user data", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_SVCD_SCAN_OFFSET, INT_MIN, INT_MAX, V|E, "flags"},
8f196b14 488{"cgop", "closed gop", 0, FF_OPT_TYPE_CONST, CODEC_FLAG_CLOSED_GOP, INT_MIN, INT_MAX, V|E, "flags"},
fac862c6
MN
489{"fast", "allow non spec compliant speedup tricks", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FAST, INT_MIN, INT_MAX, V|E, "flags2"},
490{"sgop", "strictly enforce gop size", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_STRICT_GOP, INT_MIN, INT_MAX, V|E, "flags2"},
491{"noout", "skip bitstream encoding", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NO_OUTPUT, INT_MIN, INT_MAX, V|E, "flags2"},
492{"local_header", "place global headers at every keyframe instead of in extradata", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_LOCAL_HEADER, INT_MIN, INT_MAX, V|E, "flags2"},
860a40c8 493{"sub_id", NULL, OFFSET(sub_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
233f6f88 494{"me_method", NULL, OFFSET(me_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "me_method"},
860a40c8
MN
495{"extradata_size", NULL, OFFSET(extradata_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
496{"time_base", NULL, OFFSET(time_base), FF_OPT_TYPE_RATIONAL, DEFAULT, INT_MIN, INT_MAX},
8bbf6db9 497{"gop_size", NULL, OFFSET(gop_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
860a40c8
MN
498{"rate_emu", NULL, OFFSET(rate_emu), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
499{"sample_rate", NULL, OFFSET(sample_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
500{"channels", NULL, OFFSET(channels), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
14f0c8e2 501{"cutoff", "set cutoff bandwidth", OFFSET(cutoff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, A|E},
860a40c8
MN
502{"frame_size", NULL, OFFSET(frame_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
503{"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
504{"real_pict_num", NULL, OFFSET(real_pict_num), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
505{"delay", NULL, OFFSET(delay), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
8bbf6db9
MN
506{"qcompress", NULL, OFFSET(qcompress), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
507{"qblur", NULL, OFFSET(qblur), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
508{"qmin", NULL, OFFSET(qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
509{"qmax", NULL, OFFSET(qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
510{"max_qdiff", NULL, OFFSET(max_qdiff), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
511{"max_b_frames", NULL, OFFSET(max_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
512{"b_quant_factor", NULL, OFFSET(b_quant_factor), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
513{"rc_strategy", NULL, OFFSET(rc_strategy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
c9ab8df8 514{"b_strategy", NULL, OFFSET(b_frame_strategy), FF_OPT_TYPE_INT, 0, INT_MIN, INT_MAX, V|E},
8bbf6db9 515{"hurry_up", NULL, OFFSET(hurry_up), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
860a40c8
MN
516{"rtp_mode", NULL, OFFSET(rtp_mode), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
517{"rtp_payload_size", NULL, OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
518{"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
519{"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
520{"i_tex_bits", NULL, OFFSET(i_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
521{"p_tex_bits", NULL, OFFSET(p_tex_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
522{"i_count", NULL, OFFSET(i_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
523{"p_count", NULL, OFFSET(p_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
524{"skip_count", NULL, OFFSET(skip_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
525{"misc_bits", NULL, OFFSET(misc_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
526{"frame_bits", NULL, OFFSET(frame_bits), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
527{"codec_tag", NULL, OFFSET(codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
ec9127c4 528{"bugs", NULL, OFFSET(workaround_bugs), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "bug"},
fac862c6
MN
529{"autodetect", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AUTODETECT, INT_MIN, INT_MAX, V|D, "bug"},
530{"old_msmpeg4", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_OLD_MSMPEG4, INT_MIN, INT_MAX, V|D, "bug"},
531{"xvid_ilace", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_XVID_ILACE, INT_MIN, INT_MAX, V|D, "bug"},
532{"ump4", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_UMP4, INT_MIN, INT_MAX, V|D, "bug"},
533{"no_padding", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_NO_PADDING, INT_MIN, INT_MAX, V|D, "bug"},
534{"amv", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AMV, INT_MIN, INT_MAX, V|D, "bug"},
535{"ac_vlc", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_AC_VLC, INT_MIN, INT_MAX, V|D, "bug"},
536{"qpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
537{"std_qpel", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_STD_QPEL, INT_MIN, INT_MAX, V|D, "bug"},
538{"qpel_chroma2", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_QPEL_CHROMA2, INT_MIN, INT_MAX, V|D, "bug"},
539{"direct_blocksize", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DIRECT_BLOCKSIZE, INT_MIN, INT_MAX, V|D, "bug"},
540{"edge", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_EDGE, INT_MIN, INT_MAX, V|D, "bug"},
541{"hpel_chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_HPEL_CHROMA, INT_MIN, INT_MAX, V|D, "bug"},
542{"dc_clip", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_DC_CLIP, INT_MIN, INT_MAX, V|D, "bug"},
543{"ms", NULL, 0, FF_OPT_TYPE_CONST, FF_BUG_MS, INT_MIN, INT_MAX, V|D, "bug"},
544{"lelim", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)", OFFSET(luma_elim_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
545{"celim", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)", OFFSET(chroma_elim_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
ec9127c4 546{"strict", NULL, OFFSET(strict_std_compliance), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "strict"},
fac862c6
MN
547{"very", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_VERY_STRICT, INT_MIN, INT_MAX, V|E, "strict"},
548{"strict", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_STRICT, INT_MIN, INT_MAX, V|E, "strict"},
549{"normal", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_NORMAL, INT_MIN, INT_MAX, V|E, "strict"},
550{"inofficial", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_INOFFICIAL, INT_MIN, INT_MAX, V|E, "strict"},
551{"experimental", NULL, 0, FF_OPT_TYPE_CONST, FF_COMPLIANCE_EXPERIMENTAL, INT_MIN, INT_MAX, V|E, "strict"},
8bbf6db9 552{"b_quant_offset", NULL, OFFSET(b_quant_offset), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
8f196b14 553{"er", NULL, OFFSET(error_resilience), FF_OPT_TYPE_INT, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
fac862c6
MN
554{"careful", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_CAREFUL, INT_MIN, INT_MAX, V|D, "er"},
555{"compliant", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_COMPLIANT, INT_MIN, INT_MAX, V|D, "er"},
556{"aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
557{"very_aggressive", NULL, 0, FF_OPT_TYPE_CONST, FF_ER_VERY_AGGRESSIVE, INT_MIN, INT_MAX, V|D, "er"},
860a40c8
MN
558{"has_b_frames", NULL, OFFSET(has_b_frames), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
559{"block_align", NULL, OFFSET(block_align), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
560{"parse_only", NULL, OFFSET(parse_only), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
8bbf6db9 561{"mpeg_quant", NULL, OFFSET(mpeg_quant), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
860a40c8
MN
562{"stats_out", NULL, OFFSET(stats_out), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
563{"stats_in", NULL, OFFSET(stats_in), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX},
8bbf6db9
MN
564{"rc_qsquish", NULL, OFFSET(rc_qsquish), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
565{"rc_qmod_amp", NULL, OFFSET(rc_qmod_amp), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
566{"rc_qmod_freq", NULL, OFFSET(rc_qmod_freq), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
860a40c8 567{"rc_override_count", NULL, OFFSET(rc_override_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
8bbf6db9
MN
568{"rc_eq", NULL, OFFSET(rc_eq), FF_OPT_TYPE_STRING, DEFAULT, CHAR_MIN, CHAR_MAX, V|E},
569{"rc_max_rate", NULL, OFFSET(rc_max_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
570{"rc_min_rate", NULL, OFFSET(rc_min_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
571{"rc_buffer_size", NULL, OFFSET(rc_buffer_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
572{"rc_buf_aggressivity", NULL, OFFSET(rc_buffer_aggressivity), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
573{"i_quant_factor", NULL, OFFSET(i_quant_factor), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
574{"i_quant_offset", NULL, OFFSET(i_quant_offset), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
575{"rc_initial_cplx", NULL, OFFSET(rc_initial_cplx), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
637b5326 576{"dct", NULL, OFFSET(dct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E, "dct"},
fac862c6
MN
577{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_AUTO, INT_MIN, INT_MAX, V|E, "dct"},
578{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_FASTINT, INT_MIN, INT_MAX, V|E, "dct"},
579{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_INT, INT_MIN, INT_MAX, V|E, "dct"},
580{"mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MMX, INT_MIN, INT_MAX, V|E, "dct"},
581{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_MLIB, INT_MIN, INT_MAX, V|E, "dct"},
582{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_ALTIVEC, INT_MIN, INT_MAX, V|E, "dct"},
583{"faan", NULL, 0, FF_OPT_TYPE_CONST, FF_DCT_FAAN, INT_MIN, INT_MAX, V|E, "dct"},
8f196b14
MN
584{"lumi_mask", "lumimasking", OFFSET(lumi_masking), FF_OPT_TYPE_FLOAT, 0, FLT_MIN, FLT_MAX, V|E},
585{"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), FF_OPT_TYPE_FLOAT, 0, FLT_MIN, FLT_MAX, V|E},
586{"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), FF_OPT_TYPE_FLOAT, 0, FLT_MIN, FLT_MAX, V|E},
587{"p_mask", "inter masking", OFFSET(p_masking), FF_OPT_TYPE_FLOAT, 0, FLT_MIN, FLT_MAX, V|E},
588{"dark_mask", "darkness masking", OFFSET(dark_masking), FF_OPT_TYPE_FLOAT, 0, FLT_MIN, FLT_MAX, V|E},
860a40c8 589{"unused", NULL, OFFSET(unused), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
637b5326 590{"idct", NULL, OFFSET(idct_algo), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|E|D, "idct"},
fac862c6
MN
591{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_AUTO, INT_MIN, INT_MAX, V|E|D, "idct"},
592{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_INT, INT_MIN, INT_MAX, V|E|D, "idct"},
593{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLE, INT_MIN, INT_MAX, V|E|D, "idct"},
594{"simplemmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
595{"libmpeg2mmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_LIBMPEG2MMX, INT_MIN, INT_MAX, V|E|D, "idct"},
596{"ps2", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_PS2, INT_MIN, INT_MAX, V|E|D, "idct"},
597{"mlib", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_MLIB, INT_MIN, INT_MAX, V|E|D, "idct"},
598{"arm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ARM, INT_MIN, INT_MAX, V|E|D, "idct"},
599{"altivec", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_ALTIVEC, INT_MIN, INT_MAX, V|E|D, "idct"},
600{"sh4", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SH4, INT_MIN, INT_MAX, V|E|D, "idct"},
601{"simplearm", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARM, INT_MIN, INT_MAX, V|E|D, "idct"},
602{"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"},
603{"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"},
604{"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"},
605{"xvidmmx", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_XVIDMMX, INT_MIN, INT_MAX, V|E|D, "idct"},
860a40c8 606{"slice_count", NULL, OFFSET(slice_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
8f196b14 607{"ec", NULL, OFFSET(error_concealment), FF_OPT_TYPE_FLAGS, 3, INT_MIN, INT_MAX, V|D, "ec"},
fac862c6
MN
608{"guess_mvs", NULL, 0, FF_OPT_TYPE_CONST, FF_EC_GUESS_MVS, INT_MIN, INT_MAX, V|D, "ec"},
609{"deblock", NULL, 0, FF_OPT_TYPE_CONST, FF_EC_DEBLOCK, INT_MIN, INT_MAX, V|D, "ec"},
860a40c8 610{"bits_per_sample", NULL, OFFSET(bits_per_sample), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
8f196b14 611{"pred", "prediction method", OFFSET(prediction_method), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "pred"},
fac862c6
MN
612{"left", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_LEFT, INT_MIN, INT_MAX, V|E, "pred"},
613{"plane", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_PLANE, INT_MIN, INT_MAX, V|E, "pred"},
614{"median", NULL, 0, FF_OPT_TYPE_CONST, FF_PRED_MEDIAN, INT_MIN, INT_MAX, V|E, "pred"},
637b5326
MN
615{"aspect", NULL, OFFSET(sample_aspect_ratio), FF_OPT_TYPE_RATIONAL, DEFAULT, 0, 10, V|E},
616{"debug", "print specific debug info", OFFSET(debug), FF_OPT_TYPE_FLAGS, DEFAULT, 0, INT_MAX, V|A|S|E|D, "debug"},
fac862c6
MN
617{"pict", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PICT_INFO, INT_MIN, INT_MAX, V|D, "debug"},
618{"rc", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_RC, INT_MIN, INT_MAX, V|E, "debug"},
619{"bitstream", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BITSTREAM, INT_MIN, INT_MAX, V|D, "debug"},
620{"mb_type", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
621{"qp", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_QP, INT_MIN, INT_MAX, V|D, "debug"},
622{"mv", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_MV, INT_MIN, INT_MAX, V|D, "debug"},
623{"dct_coeff", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_DCT_COEFF, INT_MIN, INT_MAX, V|D, "debug"},
624{"skip", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_SKIP, INT_MIN, INT_MAX, V|D, "debug"},
625{"startcode", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_STARTCODE, INT_MIN, INT_MAX, V|D, "debug"},
626{"pts", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_PTS, INT_MIN, INT_MAX, V|D, "debug"},
627{"er", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_ER, INT_MIN, INT_MAX, V|D, "debug"},
628{"mmco", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_MMCO, INT_MIN, INT_MAX, V|D, "debug"},
629{"bugs", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_BUGS, INT_MIN, INT_MAX, V|D, "debug"},
630{"vis_qp", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_QP, INT_MIN, INT_MAX, V|D, "debug"},
631{"vis_mb_type", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MB_TYPE, INT_MIN, INT_MAX, V|D, "debug"},
637b5326 632{"vismv", "visualize motion vectors", OFFSET(debug_mv), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, V|D, "debug_mv"},
fac862c6
MN
633{"pf", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_P_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
634{"bf", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_FOR, INT_MIN, INT_MAX, V|D, "debug_mv"},
635{"bb", NULL, 0, FF_OPT_TYPE_CONST, FF_DEBUG_VIS_MV_B_BACK, INT_MIN, INT_MAX, V|D, "debug_mv"},
8bbf6db9
MN
636{"mb_qmin", NULL, OFFSET(mb_qmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
637{"mb_qmax", NULL, OFFSET(mb_qmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
fac862c6
MN
638{"cmp", "full pel me compare function", OFFSET(me_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
639{"subcmp", "sub pel me compare function", OFFSET(me_sub_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
ec9127c4
MN
640{"mbcmp", "macroblock compare function", OFFSET(mb_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
641{"ildctcmp", "interlaced dct compare function", OFFSET(ildct_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
642{"dia_size", NULL, OFFSET(dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
8bbf6db9 643{"last_pred", NULL, OFFSET(last_predictor_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
637b5326 644{"preme", NULL, OFFSET(pre_me), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
ec9127c4 645{"precmp", "pre motion estimation compare function", OFFSET(me_pre_cmp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "cmp_func"},
fac862c6
MN
646{"sad", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_SAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
647{"sse", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_SSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
648{"satd", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_SATD, INT_MIN, INT_MAX, V|E, "cmp_func"},
649{"dct", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCT, INT_MIN, INT_MAX, V|E, "cmp_func"},
650{"psnr", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_PSNR, INT_MIN, INT_MAX, V|E, "cmp_func"},
651{"bit", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_BIT, INT_MIN, INT_MAX, V|E, "cmp_func"},
652{"rd", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_RD, INT_MIN, INT_MAX, V|E, "cmp_func"},
653{"zero", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_ZERO, INT_MIN, INT_MAX, V|E, "cmp_func"},
654{"vsad", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_VSAD, INT_MIN, INT_MAX, V|E, "cmp_func"},
655{"vsse", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_VSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
656{"nsse", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_NSSE, INT_MIN, INT_MAX, V|E, "cmp_func"},
3a6fc8fa 657#ifdef CONFIG_SNOW_ENCODER
fac862c6
MN
658{"w53", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_W53, INT_MIN, INT_MAX, V|E, "cmp_func"},
659{"w97", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_W97, INT_MIN, INT_MAX, V|E, "cmp_func"},
3a6fc8fa 660#endif
fac862c6
MN
661{"dctmax", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
662{"chroma", NULL, 0, FF_OPT_TYPE_CONST, FF_CMP_CHROMA, INT_MIN, INT_MAX, V|E, "cmp_func"},
8bbf6db9 663{"pre_dia_size", NULL, OFFSET(pre_dia_size), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
8f196b14 664{"subq", "sub pel motion estimation quality", OFFSET(me_subpel_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
860a40c8 665{"dtg_active_format", NULL, OFFSET(dtg_active_format), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
8bbf6db9
MN
666{"me_range", NULL, OFFSET(me_range), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
667{"ibias", NULL, OFFSET(intra_quant_bias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
668{"pbias", NULL, OFFSET(inter_quant_bias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
860a40c8
MN
669{"color_table_id", NULL, OFFSET(color_table_id), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
670{"internal_buffer_count", NULL, OFFSET(internal_buffer_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
671{"global_quality", NULL, OFFSET(global_quality), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
ec9127c4 672{"coder", NULL, OFFSET(coder_type), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "coder"},
8f196b14
MN
673{"vlc", "variable length coder / huffman coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_VLC, INT_MIN, INT_MAX, V|E, "coder"},
674{"ac", "arithmetic coder", 0, FF_OPT_TYPE_CONST, FF_CODER_TYPE_AC, INT_MIN, INT_MAX, V|E, "coder"},
675{"context", "context model", OFFSET(context_model), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
860a40c8
MN
676{"slice_flags", NULL, OFFSET(slice_flags), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
677{"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
ec9127c4 678{"mbd", NULL, OFFSET(mb_decision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E, "mbd"},
fac862c6
MN
679{"simple", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_SIMPLE, INT_MIN, INT_MAX, V|E, "mbd"},
680{"bits", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_BITS, INT_MIN, INT_MAX, V|E, "mbd"},
681{"rd", NULL, 0, FF_OPT_TYPE_CONST, FF_MB_DECISION_RD, INT_MIN, INT_MAX, V|E, "mbd"},
860a40c8 682{"stream_codec_tag", NULL, OFFSET(stream_codec_tag), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
8bbf6db9 683{"sc_threshold", NULL, OFFSET(scenechange_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
637b5326
MN
684{"lmin", "min lagrange factor", OFFSET(lmin), FF_OPT_TYPE_INT, 2*FF_QP2LAMBDA, 0, INT_MAX, V|E},
685{"lmax", "max lagrange factor", OFFSET(lmax), FF_OPT_TYPE_INT, 31*FF_QP2LAMBDA, 0, INT_MAX, V|E},
8f196b14 686{"nr", "noise reduction", OFFSET(noise_reduction), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
8bbf6db9
MN
687{"rc_init_occupancy", NULL, OFFSET(rc_initial_buffer_occupancy), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
688{"inter_threshold", NULL, OFFSET(inter_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
58f7833e 689{"flags2", NULL, OFFSET(flags2), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|A|E|D, "flags2"},
860a40c8 690{"error_rate", NULL, OFFSET(error_rate), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
ec9127c4 691{"antialias", NULL, OFFSET(antialias_algo), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D, "aa"},
fac862c6
MN
692{"auto", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_AUTO, INT_MIN, INT_MAX, V|D, "aa"},
693{"fastint", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FASTINT, INT_MIN, INT_MAX, V|D, "aa"},
694{"int", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_INT, INT_MIN, INT_MAX, V|D, "aa"},
695{"float", NULL, 0, FF_OPT_TYPE_CONST, FF_AA_FLOAT, INT_MIN, INT_MAX, V|D, "aa"},
8f196b14 696{"qns", "quantizer noise shaping", OFFSET(quantizer_noise_shaping), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
8bbf6db9 697{"thread_count", NULL, OFFSET(thread_count), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E|D},
637b5326 698{"me_threshold", "motion estimaton threshold", OFFSET(me_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
860a40c8 699{"mb_threshold", NULL, OFFSET(mb_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX},
8bbf6db9 700{"dc", NULL, OFFSET(intra_dc_precision), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
8f196b14 701{"nssew", "nsse weight", OFFSET(nsse_weight), FF_OPT_TYPE_INT, 8, INT_MIN, INT_MAX, V|E},
8bbf6db9
MN
702{"skip_top", NULL, OFFSET(skip_top), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
703{"skip_bottom", NULL, OFFSET(skip_bottom), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|D},
ec9127c4 704{"profile", NULL, OFFSET(profile), FF_OPT_TYPE_INT, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
fac862c6 705{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_PROFILE_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "profile"},
ec9127c4 706{"level", NULL, OFFSET(level), FF_OPT_TYPE_INT, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
fac862c6 707{"unknown", NULL, 0, FF_OPT_TYPE_CONST, FF_LEVEL_UNKNOWN, INT_MIN, INT_MAX, V|A|E, "level"},
637b5326 708{"lowres", NULL, OFFSET(lowres), FF_OPT_TYPE_INT, 0, 0, INT_MAX, V|D},
8bbf6db9
MN
709{"frame_skip_threshold", NULL, OFFSET(frame_skip_threshold), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
710{"frame_skip_factor", NULL, OFFSET(frame_skip_factor), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
711{"frame_skip_exp", NULL, OFFSET(frame_skip_exp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
d4de20d1 712{"skipcmp", "frame skip compare function", OFFSET(frame_skip_cmp), FF_OPT_TYPE_INT, FF_CMP_DCTMAX, INT_MIN, INT_MAX, V|E, "cmp_func"},
8bbf6db9
MN
713{"border_mask", NULL, OFFSET(border_masking), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
714{"mb_lmin", NULL, OFFSET(mb_lmin), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
715{"mb_lmax", NULL, OFFSET(mb_lmax), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
716{"me_penalty_compensation", NULL, OFFSET(me_penalty_compensation), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
316a2ec8 717{"bidir_refine", NULL, OFFSET(bidir_refine), FF_OPT_TYPE_INT, DEFAULT, 0, 4, V|E},
e8501c93 718{"brd_scale", NULL, OFFSET(brd_scale), FF_OPT_TYPE_INT, DEFAULT, 0, 10, V|E},
58f7833e
RS
719{"crf", NULL, OFFSET(crf), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
720{"cqp", NULL, OFFSET(cqp), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
721{"keyint_min", NULL, OFFSET(keyint_min), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
722{"refs", NULL, OFFSET(refs), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
723{"chromaoffset", NULL, OFFSET(chromaoffset), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
724{"bframebias", NULL, OFFSET(bframebias), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
696d6889 725{"trellis", NULL, OFFSET(trellis), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|A|E},
58f7833e
RS
726{"directpred", NULL, OFFSET(directpred), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
727{"bpyramid", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BPYRAMID, INT_MIN, INT_MAX, V|E, "flags2"},
728{"wpred", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_WPRED, INT_MIN, INT_MAX, V|E, "flags2"},
729{"mixed_refs", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_MIXED_REFS, INT_MIN, INT_MAX, V|E, "flags2"},
730{"8x8dct", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_8X8DCT, INT_MIN, INT_MAX, V|E, "flags2"},
731{"fastpskip", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_FASTPSKIP, INT_MIN, INT_MAX, V|E, "flags2"},
732{"aud", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_AUD, INT_MIN, INT_MAX, V|E, "flags2"},
733{"brdo", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BRDO, INT_MIN, INT_MAX, V|E, "flags2"},
734{"complexityblur", NULL, OFFSET(complexityblur), FF_OPT_TYPE_FLOAT, DEFAULT, FLT_MIN, FLT_MAX, V|E},
735{"deblockalpha", NULL, OFFSET(deblockalpha), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
736{"deblockbeta", NULL, OFFSET(deblockbeta), FF_OPT_TYPE_INT, DEFAULT, INT_MIN, INT_MAX, V|E},
737{"partitions", NULL, OFFSET(partitions), FF_OPT_TYPE_FLAGS, DEFAULT, INT_MIN, INT_MAX, V|E, "partitions"},
738{"parti4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I4X4, INT_MIN, INT_MAX, V|E, "partitions"},
739{"parti8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_I8X8, INT_MIN, INT_MAX, V|E, "partitions"},
740{"partp4x4", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P4X4, INT_MIN, INT_MAX, V|E, "partitions"},
741{"partp8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_P8X8, INT_MIN, INT_MAX, V|E, "partitions"},
742{"partb8x8", NULL, 0, FF_OPT_TYPE_CONST, X264_PART_B8X8, INT_MIN, INT_MAX, V|E, "partitions"},
39a64e30 743{"sc_factor", NULL, OFFSET(scenechange_factor), FF_OPT_TYPE_INT, 6, 0, INT_MAX, V|E},
1dd509b1 744{"mv0_threshold", NULL, OFFSET(mv0_threshold), FF_OPT_TYPE_INT, 256, 0, INT_MAX, V|E},
307eb248 745{"ivlc", "intra vlc table", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_INTRA_VLC, INT_MIN, INT_MAX, V|E, "flags2"},
f9243d34 746{"b_sensitivity", NULL, OFFSET(b_sensitivity), FF_OPT_TYPE_INT, 40, 1, INT_MAX, V|E},
a403fc03
JR
747{"compression_level", NULL, OFFSET(compression_level), FF_OPT_TYPE_INT, FF_COMPRESSION_DEFAULT, INT_MIN, INT_MAX, V|A|E},
748{"use_lpc", NULL, OFFSET(use_lpc), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
749{"lpc_coeff_precision", NULL, OFFSET(lpc_coeff_precision), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|E},
750{"min_prediction_order", NULL, OFFSET(min_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
751{"max_prediction_order", NULL, OFFSET(max_prediction_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
752{"prediction_order_method", NULL, OFFSET(prediction_order_method), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
753{"min_partition_order", NULL, OFFSET(min_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
754{"max_partition_order", NULL, OFFSET(max_partition_order), FF_OPT_TYPE_INT, -1, INT_MIN, INT_MAX, A|E},
860a40c8
MN
755{NULL},
756};
757
8bbf6db9
MN
758#undef A
759#undef V
760
860a40c8 761static AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options };
43465395 762
a949d72e 763void avcodec_get_context_defaults(AVCodecContext *s){
9740beff
MN
764 memset(s, 0, sizeof(AVCodecContext));
765
43465395 766 s->av_class= &av_codec_context_class;
e8b62df6
MN
767 s->bit_rate= 800*1000;
768 s->bit_rate_tolerance= s->bit_rate*10;
a949d72e
MN
769 s->qmin= 2;
770 s->qmax= 31;
6e0d8c06
MN
771 s->mb_lmin= FF_QP2LAMBDA * 2;
772 s->mb_lmax= FF_QP2LAMBDA * 31;
a949d72e 773 s->rc_eq= "tex^qComp";
58f7833e
RS
774 s->cqp = -1;
775 s->refs = 1;
776 s->directpred = 2;
a949d72e 777 s->qcompress= 0.5;
58f7833e
RS
778 s->complexityblur = 20.0;
779 s->keyint_min = 25;
780 s->flags2 = CODEC_FLAG2_FASTPSKIP;
e8b62df6
MN
781 s->max_qdiff= 3;
782 s->b_quant_factor=1.25;
783 s->b_quant_offset=1.25;
b3a391e8 784 s->i_quant_factor=-0.8;
e8b62df6 785 s->i_quant_offset=0.0;
4d2858de 786 s->error_concealment= 3;
8d0e42ca 787 s->error_resilience= 1;
4d2858de 788 s->workaround_bugs= FF_BUG_AUTODETECT;
c0df9d75 789 s->time_base= (AVRational){0,1};
8d0e42ca
MN
790 s->gop_size= 50;
791 s->me_method= ME_EPZS;
1e491e29
MN
792 s->get_buffer= avcodec_default_get_buffer;
793 s->release_buffer= avcodec_default_release_buffer;
a33c7159 794 s->get_format= avcodec_default_get_format;
9c3d33d6
MN
795 s->execute= avcodec_default_execute;
796 s->thread_count=1;
826f429a 797 s->me_subpel_quality=8;
158c7f05
MN
798 s->lmin= FF_QP2LAMBDA * s->qmin;
799 s->lmax= FF_QP2LAMBDA * s->qmax;
5ff85f1d 800 s->sample_aspect_ratio= (AVRational){0,1};
620fe604 801 s->ildct_cmp= FF_CMP_VSAD;
baced9f5
MN
802 s->profile= FF_PROFILE_UNKNOWN;
803 s->level= FF_LEVEL_UNKNOWN;
09c3e44e 804 s->me_penalty_compensation= 256;
644a9262 805 s->pix_fmt= PIX_FMT_NONE;
ec9127c4 806 s->frame_skip_cmp= FF_CMP_DCTMAX;
8f196b14 807 s->nsse_weight= 8;
1319a77b 808 s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
1dd509b1 809 s->mv0_threshold= 256;
f9243d34 810 s->b_sensitivity= 40;
a403fc03
JR
811 s->compression_level = FF_COMPRESSION_DEFAULT;
812 s->use_lpc = -1;
813 s->min_prediction_order = -1;
814 s->max_prediction_order = -1;
815 s->prediction_order_method = -1;
816 s->min_partition_order = -1;
817 s->max_partition_order = -1;
115329f1 818
1984f635
MN
819 s->intra_quant_bias= FF_DEFAULT_QUANT_BIAS;
820 s->inter_quant_bias= FF_DEFAULT_QUANT_BIAS;
2a2bbcb0 821 s->palctrl = NULL;
e1c2a5a0 822 s->reget_buffer= avcodec_default_reget_buffer;
a949d72e
MN
823}
824
825/**
826 * allocates a AVCodecContext and set it to defaults.
115329f1 827 * this can be deallocated by simply calling free()
a949d72e 828 */
7ffbb60e 829AVCodecContext *avcodec_alloc_context(void){
9740beff 830 AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
115329f1 831
a949d72e 832 if(avctx==NULL) return NULL;
115329f1 833
a949d72e 834 avcodec_get_context_defaults(avctx);
115329f1 835
a949d72e
MN
836 return avctx;
837}
838
9740beff
MN
839void avcodec_get_frame_defaults(AVFrame *pic){
840 memset(pic, 0, sizeof(AVFrame));
841
842 pic->pts= AV_NOPTS_VALUE;
c342499d 843 pic->key_frame= 1;
9740beff
MN
844}
845
1e491e29 846/**
492cd3a9 847 * allocates a AVPFrame and set it to defaults.
115329f1 848 * this can be deallocated by simply calling free()
1e491e29 849 */
492cd3a9 850AVFrame *avcodec_alloc_frame(void){
9740beff 851 AVFrame *pic= av_malloc(sizeof(AVFrame));
115329f1 852
9740beff 853 if(pic==NULL) return NULL;
115329f1 854
9740beff 855 avcodec_get_frame_defaults(pic);
115329f1 856
1e491e29
MN
857 return pic;
858}
859
de6d9b64
FB
860int avcodec_open(AVCodecContext *avctx, AVCodec *codec)
861{
ddebfb15 862 int ret= -1;
115329f1 863
ddebfb15
MN
864 entangled_thread_counter++;
865 if(entangled_thread_counter != 1){
866 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
867 goto end;
868 }
de6d9b64 869
09770af8 870 if(avctx->codec)
ddebfb15 871 goto end;
09770af8 872
0edf8a7a
PG
873 if (codec->priv_data_size > 0) {
874 avctx->priv_data = av_mallocz(codec->priv_data_size);
115329f1 875 if (!avctx->priv_data)
ddebfb15 876 goto end;
0edf8a7a
PG
877 } else {
878 avctx->priv_data = NULL;
879 }
21adafec
MN
880
881 if(avctx->coded_width && avctx->coded_height)
882 avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height);
883 else if(avctx->width && avctx->height)
884 avcodec_set_dimensions(avctx, avctx->width, avctx->height);
885
0ecca7a4
MN
886 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height)){
887 av_freep(&avctx->priv_data);
ddebfb15 888 goto end;
0ecca7a4
MN
889 }
890
b5c85991
MN
891 avctx->codec = codec;
892 avctx->codec_id = codec->id;
893 avctx->frame_number = 0;
de6d9b64
FB
894 ret = avctx->codec->init(avctx);
895 if (ret < 0) {
3123dd79 896 av_freep(&avctx->priv_data);
b5c85991 897 avctx->codec= NULL;
ddebfb15 898 goto end;
de6d9b64 899 }
ddebfb15
MN
900 ret=0;
901end:
902 entangled_thread_counter--;
903 return ret;
de6d9b64
FB
904}
905
115329f1 906int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
de6d9b64
FB
907 const short *samples)
908{
0ecca7a4
MN
909 if(buf_size < FF_MIN_BUFFER_SIZE && 0){
910 av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
911 return -1;
912 }
6f824977
MN
913 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || samples){
914 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)samples);
915 avctx->frame_number++;
916 return ret;
917 }else
918 return 0;
de6d9b64
FB
919}
920
115329f1 921int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
492cd3a9 922 const AVFrame *pict)
de6d9b64 923{
0ecca7a4
MN
924 if(buf_size < FF_MIN_BUFFER_SIZE){
925 av_log(avctx, AV_LOG_ERROR, "buffer smaller then minimum size\n");
926 return -1;
927 }
928 if(avcodec_check_dimensions(avctx,avctx->width,avctx->height))
929 return -1;
6f824977
MN
930 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || pict){
931 int ret = avctx->codec->encode(avctx, buf, buf_size, (void *)pict);
932 avctx->frame_number++;
bb628dae 933 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1 934
6f824977
MN
935 return ret;
936 }else
937 return 0;
de6d9b64
FB
938}
939
115329f1 940int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
240c1657
FB
941 const AVSubtitle *sub)
942{
943 int ret;
944 ret = avctx->codec->encode(avctx, buf, buf_size, (void *)sub);
945 avctx->frame_number++;
946 return ret;
947}
948
115329f1
DB
949/**
950 * decode a frame.
f138f883
MN
951 * @param buf bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE larger then the actual read bytes
952 * because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
953 * @param buf_size the size of the buffer in bytes
954 * @param got_picture_ptr zero if no frame could be decompressed, Otherwise, it is non zero
955 * @return -1 if error, otherwise return the number of
115329f1 956 * bytes used.
f138f883 957 */
115329f1 958int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
de6d9b64 959 int *got_picture_ptr,
0c1a9eda 960 uint8_t *buf, int buf_size)
de6d9b64
FB
961{
962 int ret;
115329f1 963
53db1cae 964 *got_picture_ptr= 0;
0ecca7a4
MN
965 if((avctx->coded_width||avctx->coded_height) && avcodec_check_dimensions(avctx,avctx->coded_width,avctx->coded_height))
966 return -1;
934982c4 967 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
115329f1 968 ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
934982c4 969 buf, buf_size);
6bb925f4 970
bb628dae 971 emms_c(); //needed to avoid an emms_c() call before every return;
115329f1
DB
972
973 if (*got_picture_ptr)
934982c4
MN
974 avctx->frame_number++;
975 }else
976 ret= 0;
977
de6d9b64
FB
978 return ret;
979}
980
981/* decode an audio frame. return -1 if error, otherwise return the
982 *number of bytes used. If no frame could be decompressed,
983 *frame_size_ptr is zero. Otherwise, it is the decompressed frame
984 *size in BYTES. */
115329f1 985int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
de6d9b64 986 int *frame_size_ptr,
0c1a9eda 987 uint8_t *buf, int buf_size)
de6d9b64
FB
988{
989 int ret;
990
53db1cae 991 *frame_size_ptr= 0;
fec9ccb7 992 if((avctx->codec->capabilities & CODEC_CAP_DELAY) || buf_size){
115329f1 993 ret = avctx->codec->decode(avctx, samples, frame_size_ptr,
fec9ccb7
MN
994 buf, buf_size);
995 avctx->frame_number++;
996 }else
997 ret= 0;
de6d9b64
FB
998 return ret;
999}
1000
240c1657
FB
1001/* decode a subtitle message. return -1 if error, otherwise return the
1002 *number of bytes used. If no subtitle could be decompressed,
1003 *got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */
1004int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
1005 int *got_sub_ptr,
1006 const uint8_t *buf, int buf_size)
1007{
1008 int ret;
1009
1010 *got_sub_ptr = 0;
115329f1 1011 ret = avctx->codec->decode(avctx, sub, got_sub_ptr,
240c1657
FB
1012 (uint8_t *)buf, buf_size);
1013 if (*got_sub_ptr)
1014 avctx->frame_number++;
1015 return ret;
1016}
1017
de6d9b64
FB
1018int avcodec_close(AVCodecContext *avctx)
1019{
ddebfb15
MN
1020 entangled_thread_counter++;
1021 if(entangled_thread_counter != 1){
1022 av_log(avctx, AV_LOG_ERROR, "insufficient thread locking around avcodec_open/close()\n");
1023 entangled_thread_counter--;
1024 return -1;
1025 }
1026
de6d9b64
FB
1027 if (avctx->codec->close)
1028 avctx->codec->close(avctx);
eea8c08f 1029 avcodec_default_free_buffers(avctx);
3123dd79 1030 av_freep(&avctx->priv_data);
de6d9b64 1031 avctx->codec = NULL;
ddebfb15 1032 entangled_thread_counter--;
de6d9b64
FB
1033 return 0;
1034}
1035
1036AVCodec *avcodec_find_encoder(enum CodecID id)
1037{
1038 AVCodec *p;
1039 p = first_avcodec;
1040 while (p) {
1041 if (p->encode != NULL && p->id == id)
1042 return p;
1043 p = p->next;
1044 }
1045 return NULL;
1046}
1047
98f3b098
A
1048AVCodec *avcodec_find_encoder_by_name(const char *name)
1049{
1050 AVCodec *p;
1051 p = first_avcodec;
1052 while (p) {
1053 if (p->encode != NULL && strcmp(name,p->name) == 0)
1054 return p;
1055 p = p->next;
1056 }
1057 return NULL;
1058}
1059
de6d9b64
FB
1060AVCodec *avcodec_find_decoder(enum CodecID id)
1061{
1062 AVCodec *p;
1063 p = first_avcodec;
1064 while (p) {
1065 if (p->decode != NULL && p->id == id)
1066 return p;
1067 p = p->next;
1068 }
1069 return NULL;
1070}
1071
1072AVCodec *avcodec_find_decoder_by_name(const char *name)
1073{
1074 AVCodec *p;
1075 p = first_avcodec;
1076 while (p) {
1077 if (p->decode != NULL && strcmp(name,p->name) == 0)
1078 return p;
1079 p = p->next;
1080 }
1081 return NULL;
1082}
1083
de6d9b64
FB
1084void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
1085{
1086 const char *codec_name;
1087 AVCodec *p;
1088 char buf1[32];
623563c0 1089 char channels_str[100];
a96b68b7 1090 int bitrate;
de6d9b64
FB
1091
1092 if (encode)
1093 p = avcodec_find_encoder(enc->codec_id);
1094 else
1095 p = avcodec_find_decoder(enc->codec_id);
1096
1097 if (p) {
1098 codec_name = p->name;
98ce5991
FB
1099 if (!encode && enc->codec_id == CODEC_ID_MP3) {
1100 if (enc->sub_id == 2)
1101 codec_name = "mp2";
1102 else if (enc->sub_id == 1)
1103 codec_name = "mp1";
1104 }
985180a1
FB
1105 } else if (enc->codec_id == CODEC_ID_MPEG2TS) {
1106 /* fake mpeg2 transport stream codec (currently not
1107 registered) */
1108 codec_name = "mpeg2ts";
de6d9b64
FB
1109 } else if (enc->codec_name[0] != '\0') {
1110 codec_name = enc->codec_name;
1111 } else {
1112 /* output avi tags */
115329f1 1113 if( isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
b983a5c6 1114 && isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
115329f1 1115 snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
de6d9b64
FB
1116 enc->codec_tag & 0xff,
1117 (enc->codec_tag >> 8) & 0xff,
1118 (enc->codec_tag >> 16) & 0xff,
b983a5c6
MN
1119 (enc->codec_tag >> 24) & 0xff,
1120 enc->codec_tag);
de6d9b64
FB
1121 } else {
1122 snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
1123 }
1124 codec_name = buf1;
1125 }
1126
1127 switch(enc->codec_type) {
1128 case CODEC_TYPE_VIDEO:
1129 snprintf(buf, buf_size,
1130 "Video: %s%s",
7d1c3fc1 1131 codec_name, enc->mb_decision ? " (hq)" : "");
82c0c4ba 1132 if (enc->pix_fmt != PIX_FMT_NONE) {
cf087595
FB
1133 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1134 ", %s",
9bbffbb1 1135 avcodec_get_pix_fmt_name(enc->pix_fmt));
cf087595 1136 }
de6d9b64
FB
1137 if (enc->width) {
1138 snprintf(buf + strlen(buf), buf_size - strlen(buf),
21189011
MN
1139 ", %dx%d",
1140 enc->width, enc->height);
1141 if(av_log_get_level() >= AV_LOG_DEBUG){
1142 int g= ff_gcd(enc->time_base.num, enc->time_base.den);
1143 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1144 ", %d/%d",
1145 enc->time_base.num/g, enc->time_base.den/g);
1146 }
de6d9b64 1147 }
4bfad535
FB
1148 if (encode) {
1149 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1150 ", q=%d-%d", enc->qmin, enc->qmax);
1151 }
a96b68b7 1152 bitrate = enc->bit_rate;
de6d9b64
FB
1153 break;
1154 case CODEC_TYPE_AUDIO:
1155 snprintf(buf, buf_size,
1156 "Audio: %s",
1157 codec_name);
e0d2714a
J
1158 switch (enc->channels) {
1159 case 1:
623563c0 1160 strcpy(channels_str, "mono");
e0d2714a
J
1161 break;
1162 case 2:
623563c0 1163 strcpy(channels_str, "stereo");
e0d2714a
J
1164 break;
1165 case 6:
623563c0 1166 strcpy(channels_str, "5:1");
e0d2714a
J
1167 break;
1168 default:
2fc8ea24 1169 snprintf(channels_str, sizeof(channels_str), "%d channels", enc->channels);
e0d2714a
J
1170 break;
1171 }
de6d9b64
FB
1172 if (enc->sample_rate) {
1173 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1174 ", %d Hz, %s",
1175 enc->sample_rate,
e0d2714a 1176 channels_str);
de6d9b64 1177 }
115329f1 1178
a96b68b7
FB
1179 /* for PCM codecs, compute bitrate directly */
1180 switch(enc->codec_id) {
b461b3bc
RD
1181 case CODEC_ID_PCM_S32LE:
1182 case CODEC_ID_PCM_S32BE:
1183 case CODEC_ID_PCM_U32LE:
1184 case CODEC_ID_PCM_U32BE:
1185 bitrate = enc->sample_rate * enc->channels * 32;
1186 break;
1187 case CODEC_ID_PCM_S24LE:
1188 case CODEC_ID_PCM_S24BE:
1189 case CODEC_ID_PCM_U24LE:
1190 case CODEC_ID_PCM_U24BE:
1191 case CODEC_ID_PCM_S24DAUD:
1192 bitrate = enc->sample_rate * enc->channels * 24;
1193 break;
a96b68b7
FB
1194 case CODEC_ID_PCM_S16LE:
1195 case CODEC_ID_PCM_S16BE:
1196 case CODEC_ID_PCM_U16LE:
1197 case CODEC_ID_PCM_U16BE:
a190b7e9 1198 bitrate = enc->sample_rate * enc->channels * 16;
a96b68b7
FB
1199 break;
1200 case CODEC_ID_PCM_S8:
1201 case CODEC_ID_PCM_U8:
1202 case CODEC_ID_PCM_ALAW:
1203 case CODEC_ID_PCM_MULAW:
a190b7e9 1204 bitrate = enc->sample_rate * enc->channels * 8;
a96b68b7
FB
1205 break;
1206 default:
1207 bitrate = enc->bit_rate;
1208 break;
1209 }
de6d9b64 1210 break;
985180a1
FB
1211 case CODEC_TYPE_DATA:
1212 snprintf(buf, buf_size, "Data: %s", codec_name);
240c1657
FB
1213 bitrate = enc->bit_rate;
1214 break;
1215 case CODEC_TYPE_SUBTITLE:
1216 snprintf(buf, buf_size, "Subtitle: %s", codec_name);
985180a1
FB
1217 bitrate = enc->bit_rate;
1218 break;
de6d9b64 1219 default:
9fe5a7b8
MN
1220 snprintf(buf, buf_size, "Invalid Codec type %d", enc->codec_type);
1221 return;
de6d9b64 1222 }
4bfad535
FB
1223 if (encode) {
1224 if (enc->flags & CODEC_FLAG_PASS1)
1225 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1226 ", pass 1");
1227 if (enc->flags & CODEC_FLAG_PASS2)
1228 snprintf(buf + strlen(buf), buf_size - strlen(buf),
1229 ", pass 2");
1230 }
a96b68b7 1231 if (bitrate != 0) {
115329f1 1232 snprintf(buf + strlen(buf), buf_size - strlen(buf),
a96b68b7 1233 ", %d kb/s", bitrate / 1000);
de6d9b64
FB
1234 }
1235}
1236
156e5023
NK
1237unsigned avcodec_version( void )
1238{
1239 return LIBAVCODEC_VERSION_INT;
1240}
cf087595 1241
8bceb6af
NK
1242unsigned avcodec_build( void )
1243{
1244 return LIBAVCODEC_BUILD;
1245}
1246
43a80cce
MN
1247static void init_crcs(void){
1248 av_crc04C11DB7= av_mallocz_static(sizeof(AVCRC) * 257);
e027d0a8 1249 av_crc8005 = av_mallocz_static(sizeof(AVCRC) * 257);
b865838e 1250 av_crc07 = av_mallocz_static(sizeof(AVCRC) * 257);
43a80cce 1251 av_crc_init(av_crc04C11DB7, 0, 32, 0x04c11db7, sizeof(AVCRC)*257);
e027d0a8 1252 av_crc_init(av_crc8005 , 0, 16, 0x8005 , sizeof(AVCRC)*257);
b865838e 1253 av_crc_init(av_crc07 , 0, 8, 0x07 , sizeof(AVCRC)*257);
43a80cce
MN
1254}
1255
de6d9b64
FB
1256/* must be called before any other functions */
1257void avcodec_init(void)
1258{
0344cd0a
AB
1259 static int inited = 0;
1260
1261 if (inited != 0)
bb270c08 1262 return;
0344cd0a
AB
1263 inited = 1;
1264
59cf08ce 1265 dsputil_static_init();
43a80cce 1266 init_crcs();
de6d9b64
FB
1267}
1268
7a06ff14
MN
1269/**
1270 * Flush buffers, should be called when seeking or when swicthing to a different stream.
1271 */
1c2a8c7f
MN
1272void avcodec_flush_buffers(AVCodecContext *avctx)
1273{
7a06ff14
MN
1274 if(avctx->codec->flush)
1275 avctx->codec->flush(avctx);
1c2a8c7f
MN
1276}
1277
b100eab8 1278void avcodec_default_free_buffers(AVCodecContext *s){
d90cf87b
MN
1279 int i, j;
1280
1281 if(s->internal_buffer==NULL) return;
115329f1 1282
d90cf87b
MN
1283 for(i=0; i<INTERNAL_BUFFER_SIZE; i++){
1284 InternalBuffer *buf= &((InternalBuffer*)s->internal_buffer)[i];
1285 for(j=0; j<4; j++){
1286 av_freep(&buf->base[j]);
1287 buf->data[j]= NULL;
1288 }
1289 }
1290 av_freep(&s->internal_buffer);
115329f1 1291
d90cf87b
MN
1292 s->internal_buffer_count=0;
1293}
1294
d8085ea7
MN
1295char av_get_pict_type_char(int pict_type){
1296 switch(pict_type){
115329f1
DB
1297 case I_TYPE: return 'I';
1298 case P_TYPE: return 'P';
1299 case B_TYPE: return 'B';
1300 case S_TYPE: return 'S';
1301 case SI_TYPE:return 'i';
1302 case SP_TYPE:return 'p';
d8085ea7
MN
1303 default: return '?';
1304 }
1305}
1306
9b879566
MB
1307/* av_log API */
1308
e18c1f19 1309static int av_log_level = AV_LOG_INFO;
9b879566 1310
bc874dae 1311static void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
9b879566 1312{
89b9441a 1313 static int print_prefix=1;
43465395 1314 AVClass* avc= ptr ? *(AVClass**)ptr : NULL;
9b879566 1315 if(level>av_log_level)
bb270c08 1316 return;
d705e4a6 1317#undef fprintf
43465395 1318 if(print_prefix && avc) {
bb270c08 1319 fprintf(stderr, "[%s @ %p]", avc->item_name(ptr), avc);
bc874dae 1320 }
d705e4a6 1321#define fprintf please_use_av_log
115329f1 1322
95ba2c8f 1323 print_prefix= strstr(fmt, "\n") != NULL;
115329f1 1324
9b879566
MB
1325 vfprintf(stderr, fmt, vl);
1326}
1327
bc874dae 1328static void (*av_log_callback)(void*, int, const char*, va_list) = av_log_default_callback;
9b879566 1329
bc874dae 1330void av_log(void* avcl, int level, const char *fmt, ...)
9b879566
MB
1331{
1332 va_list vl;
1333 va_start(vl, fmt);
bc874dae 1334 av_vlog(avcl, level, fmt, vl);
9b879566
MB
1335 va_end(vl);
1336}
1337
bc874dae 1338void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
9b879566 1339{
bc874dae 1340 av_log_callback(avcl, level, fmt, vl);
9b879566
MB
1341}
1342
1343int av_log_get_level(void)
1344{
1345 return av_log_level;
1346}
1347
1348void av_log_set_level(int level)
1349{
1350 av_log_level = level;
1351}
1352
bc874dae 1353void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
9b879566
MB
1354{
1355 av_log_callback = callback;
1356}
1357
2450cff2 1358#if !defined(HAVE_THREADS)
ca8ad847
MN
1359int avcodec_thread_init(AVCodecContext *s, int thread_count){
1360 return -1;
1361}
1362#endif
ad2b531d
MR
1363
1364unsigned int av_xiphlacing(unsigned char *s, unsigned int v)
1365{
1366 unsigned int n = 0;
1367
1368 while(v >= 0xff) {
1369 *s++ = 0xff;
1370 v -= 0xff;
1371 n++;
1372 }
1373 *s = v;
1374 n++;
1375 return n;
1376}
1005f542
CH
1377
1378/* Wrapper to work around the lack of mkstemp() on mingw/cygin.
1379 * Also, tries to create file in /tmp first, if possible.
1380 * *prefix can be a character constant; *filename will be allocated internally.
1381 * Returns file descriptor of opened file (or -1 on error)
1382 * and opened file name in **filename. */
1383int av_tempfile(char *prefix, char **filename) {
1384 int fd=-1;
1385#ifdef CONFIG_WIN32
1386 *filename = tempnam(".", prefix);
1387#else
1388 size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
f2508b17 1389 *filename = av_malloc(len);
1005f542
CH
1390#endif
1391 /* -----common section-----*/
1392 if (*filename == NULL) {
1393 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
1394 return -1;
1395 }
1396#ifdef CONFIG_WIN32
1397 fd = open(*filename, _O_RDWR | _O_BINARY | _O_CREAT, 0444);
1398#else
1399 snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
1400 fd = mkstemp(*filename);
1401 if (fd < 0) {
1402 snprintf(*filename, len, "./%sXXXXXX", prefix);
1403 fd = mkstemp(*filename);
1404 }
1405#endif
1406 /* -----common section-----*/
1407 if (fd < 0) {
1408 av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
1409 return -1;
1410 }
1411 return fd; /* success */
1412}